Key points of cultivating Pleurotus ostreatus in high temperature season
Over the years, many mushroom farmers have tried their best to avoid cultivating Pleurotus ostreatus in hot seasons because of high pollution rates, serious diseases and insect pests, and great changes in the market. In view of the above problems. This paper introduces a set of key points of cultivating Pleurotus ostreatus in high temperature season.
Varieties with medium and high temperature, strong stress resistance, white and dense hyphae, strong wall climbing and less aerial hyphae should be selected, and medium-and low-temperature and low-temperature varieties should be resolutely eliminated.
Cultivation sites should be selected next to the courtyard, in the shade of trees, and in wild woods, but pay attention to choosing places with good ventilation, away from pollution sources, and shelter from wind and rain.
Prevention of diseases and insect pests ① due to high temperature, the dosage of fungicides should be increased to 0.15-0.2%. The environment should be alkaline. Sprinkle more lime powder on the cultivated land. The bacterial bag should be 20-22 cm in size and should be placed in a single layer when stacked. The insecticidal and acaricidal agents were added to the ② culture medium, that is, 1 part of phoxim + 2 parts of acaryl alcohol, and the dosage was 0.1-0.12%. Do not increase or decrease the dosage at will, when the dosage is large, it is easy to produce deformed mushrooms, and when the dosage is too small, it will cause mites to produce drug resistance. This is an important reason why many cultivators fail to cultivate Pleurotus ostreatus in off-season.
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Efficient cultivation of Pleurotus ostreatus with corncob
It is estimated that every 100 kilograms of corncob can produce 100-150 kilograms of fresh Pleurotus ostreatus, and the bioconversion rate is 150% 250%. Material selection and processing. Choose the fresh and mildew-free corncob and put it in the sun for 2-3 days and crush it to the size of corn kernels without sieving. Preparation of culture materials. Reference formula: corncob 79%, bean straw 15%, lime 4%, gypsum 1%, calcium superphosphate 1%, urea 0.3%. Preparation method: first dissolve lime and urea in water, then mix into the material, the ratio of water to material is 1 ∶ 1
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How to prevent and cure round spot disease of Panax notoginseng
It can damage all parts of the plant, and the back of the leaf shows small yellow spots at the initial stage of the disease, and rapidly expands into a transparent circle in wet or continuous rainy days. When the weather is dry after the disease, the disease spot is large, round brown, with obvious wheel patterns. When the stem is damaged, the damaged part is chestnut color, and the diseased part has a gray-white mildew layer, which can cause bud rot and stem base rot. Prevention and control methods: first, in the epidemic season, open the ventilation door of Panax notoginseng garden to increase air flow and reduce humidity in the garden. The second is to adjust the light intensity of Panax notoginseng to avoid excessive light, which is conducive to the spread of the disease.
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